So, you're wanting a 'generic' find that will always give you the last three days of records..?
Make sure that your date field is set to type 'date', then I suggest that you need a script:
Go to Layout ["YourTable" (yourtable)]
Enter Find Mode  // uncheck Pause
Set Field [Yourtable::yourdatefield ; Get(CurrentDate) & "..." & Get(CurrentDate) - 3] // concatenates today's date, the ellipsis (...), and the date of three days ago
set up a button on your layout, set it up to run this little script - you may find that you need to change the 3 to 4 depending on exactly when your 'day' starts
Thank you, Phil.